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VSC-HVDC System Modeling and Validation
KTH, School of Electrical Engineering (EES), Electric Power Systems. (SmarTS Lab)
2014 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The performance of traditionally used converter control strategies dependson the ac system conditions. Particularly, the ac system strength is a limitingfactor for converter controls to perform well. This work is motivated bythe rapid proliferation of high-voltage dc technology, which enables dierentcontrol structures to be simulated using dierent simulation tools. The rstpart of this thesis investigates a generic converter control model on dierentsimulation platforms and implementations. The second part exploits theabove-mentioned limiting factor for converter controls to perform well.In this thesis, a control implementation is tailored to replicate the be-havior of another control implementation on dierent software. In orderto ensure that software implementations not become alienated from reality,comparisons to a manufacturer's black-box are also carried out. Furthermore,this thesis demonstrates how many converter stations are linked together bya dc transmission network. A previously proposed control method, power-synchronization control, has been demonstrated to perform well on a point-to-point high-voltage direct current link in connection to a weak ac system.In this thesis, the potential of power-synchronization control is demonstratedin a multi-terminal dc grid with one very weak ac system connection.

Place, publisher, year, edition, pages
2014. , 133 p.
Series
EES Examensarbete / Master Thesis
Keyword [en]
VSC-HVDC
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-142619OAI: oai:DiVA.org:kth-142619DiVA: diva2:703665
Subject / course
Electric Power Systems
Educational program
Master of Science in Engineering -Engineering Physics
Supervisors
Examiners
Available from: 2014-03-13 Created: 2014-03-07 Last updated: 2014-03-13Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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